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xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_aix.cpp@b8a032363ba2 (annotated)

xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc_aix.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	/* Platform specific code to invoke XPCOM methods on native objects */
michael@0	7
michael@0	8	#include "xptcprivate.h"
michael@0	9
michael@0	10	#ifndef AIX
michael@0	11	#error "This code is for PowerPC only"
michael@0	12	#endif
michael@0	13
michael@0	14	extern "C" void
michael@0	15	invoke_copy_to_stack(uint32_t* d, uint32_t paramCount, nsXPTCVariant* s, double *fprData)
michael@0	16	{
michael@0	17	/*
michael@0	18	We need to copy the parameters for this function to locals and use them
michael@0	19	from there since the parameters occupy the same stack space as the stack
michael@0	20	we're trying to populate.
michael@0	21	*/
michael@0	22	uint32_t *l_d = d;
michael@0	23	nsXPTCVariant *l_s = s;
michael@0	24	uint32_t l_paramCount = paramCount, fpCount = 0;
michael@0	25	double *l_fprData = fprData;
michael@0	26
michael@0	27	typedef struct {
michael@0	28	uint32_t hi;
michael@0	29	uint32_t lo;
michael@0	30	} DU; // have to move 64 bit entities as 32 bit halves since
michael@0	31	// stack slots are not guaranteed 16 byte aligned
michael@0	32
michael@0	33	for(uint32_t i = 0; i < l_paramCount; i++, l_d++, l_s++)
michael@0	34	{
michael@0	35	if(l_s->IsPtrData())
michael@0	36	{
michael@0	37	*((void**)l_d) = l_s->ptr;
michael@0	38	continue;
michael@0	39	}
michael@0	40	switch(l_s->type)
michael@0	41	{
michael@0	42	case nsXPTType::T_I8 : *((int32_t*) l_d) = l_s->val.i8; break;
michael@0	43	case nsXPTType::T_I16 : *((int32_t*) l_d) = l_s->val.i16; break;
michael@0	44	case nsXPTType::T_I32 : *((int32_t*) l_d) = l_s->val.i32; break;
michael@0	45	case nsXPTType::T_I64 :
michael@0	46	case nsXPTType::T_U64 :
michael@0	47	*((uint32_t*) l_d++) = ((DU *)l_s)->hi;
michael@0	48	*((uint32_t*) l_d) = ((DU *)l_s)->lo;
michael@0	49	break;
michael@0	50	case nsXPTType::T_DOUBLE :
michael@0	51	*((uint32_t*) l_d++) = ((DU *)l_s)->hi;
michael@0	52	*((uint32_t*) l_d) = ((DU *)l_s)->lo;
michael@0	53	if(fpCount < 13)
michael@0	54	l_fprData[fpCount++] = l_s->val.d;
michael@0	55	break;
michael@0	56	case nsXPTType::T_U8 : *((uint32_t*) l_d) = l_s->val.u8; break;
michael@0	57	case nsXPTType::T_U16 : *((uint32_t*) l_d) = l_s->val.u16; break;
michael@0	58	case nsXPTType::T_U32 : *((uint32_t*) l_d) = l_s->val.u32; break;
michael@0	59	case nsXPTType::T_FLOAT :
michael@0	60	*((float*) l_d) = l_s->val.f;
michael@0	61	if(fpCount < 13)
michael@0	62	l_fprData[fpCount++] = l_s->val.f;
michael@0	63	break;
michael@0	64	case nsXPTType::T_BOOL : *((uint32_t*) l_d) = l_s->val.b; break;
michael@0	65	case nsXPTType::T_CHAR : *((uint32_t*) l_d) = l_s->val.c; break;
michael@0	66	case nsXPTType::T_WCHAR : *((int32_t*) l_d) = l_s->val.wc; break;
michael@0	67	default:
michael@0	68	// all the others are plain pointer types
michael@0	69	*((void**)l_d) = l_s->val.p;
michael@0	70	break;
michael@0	71	}
michael@0	72	}
michael@0	73	}
michael@0	74